java/examples/Basics/Input/MouseSignals/applet/MouseSignals.java

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+import processing.core.*; 
+
+import java.applet.*; 
+import java.awt.*; 
+import java.awt.image.*; 
+import java.awt.event.*; 
+import java.io.*; 
+import java.net.*; 
+import java.text.*; 
+import java.util.*; 
+import java.util.zip.*; 
+import java.util.regex.*; 
+
+public class MouseSignals extends PApplet {
+
+/**
+ * Mouse Signals. 
+ * 
+ * Move and click the mouse to generate signals. 
+ * The top row is the signal from "mouseX", 
+ * the middle row is the signal from "mouseY",
+ * and the bottom row is the signal from "mousePressed". 
+ */
+ 
+int[] xvals;
+int[] yvals;
+int[] bvals;
+
+public void setup() 
+{
+  size(200, 200);
+  xvals = new int[width];
+  yvals = new int[width];
+  bvals = new int[width];
+}
+
+int arrayindex = 0;
+
+public void draw()
+{
+  background(102);
+  
+  for(int i=1; i<width; i++) { 
+    xvals[i-1] = xvals[i]; 
+    yvals[i-1] = yvals[i];
+    bvals[i-1] = bvals[i];
+  } 
+  // Add the new values to the end of the array 
+  xvals[width-1] = mouseX; 
+  yvals[width-1] = mouseY;
+  if(mousePressed) {
+    bvals[width-1] = 0;
+  } else {
+    bvals[width-1] = 255;
+  }
+  
+  fill(255);
+  noStroke();
+  rect(0, height/3, width, height/3+1);
+
+  for(int i=1; i<width; i++) {
+    stroke(255);
+    point(i, xvals[i]/3);
+    stroke(0);
+    point(i, height/3+yvals[i]/3);
+    stroke(255);
+    line(i, 2*height/3+bvals[i]/3, i, (2*height/3+bvals[i-1]/3));
+  }
+}
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "MouseSignals" });
+  }
+}